Does the proliferation of aid donors lead to visible changes in the world of foreign assistance? Aid provided by low- and middle-income countries, autocratic regimes and donors operating outside the Development Assistance Committee (DAC) of the OECD is gaining in importance. This article uses...

The question if private donors care about aid effectiveness when they donate to an international charity has received little attention in the literature on private charitable giving as well as in development microeconomics. This discussion is important, because a considerable share of foreign...

While discrimination and its economic implications have been studied in many different societies and based on a multitude of attributes like ethnicity, religion, gender, or language, the development of such behavior in children is still poorly understood. Here we present experimental evidence...

People do not only feel guilt from not living up to others expectations (Battigalli and Dufwenberg (2007)), but may also like to exceed them. We propose a model that generalizes the guilt aversion model to capture the possibility of positive surprises when making gifts. A model extension allows...

We study how website defaults aff ect consumer behavior in the domain of charitable giving. In a field experiment that was conducted on a large platform for making charitable donations over the web, we exogenously vary the default options in two distinct choice dimensions. The first pertains to...

We study the role of self-interest and social preferences in referenda. Our analysis is based on collective purchasing decisions of university students on deep-discount flat-rate tickets for public transportation and culture. Individual usage data allows quantifying monetary benefits associated...

In this paper, we present evidence from a large-scale natural experiment in which different fundraising schemes are tested and compared: lead donor, standard linear matching (1:1), and an alternative matching scheme in which the matching amount goes to another project. The lead donor treatment,...

We study individuals who can nudge themselves out of, or opt into a set of rules which either allows them to spy on an opponent, or to sabotage an opponent, or to fabricate payoff-relevant information on the opponent s moves. In an experiment, we observe significant altruism under rules which...

This paper studies the effects of differences in worldviews on parents? attitudes towards their children. We use unique German survey data containing questions on worldviews, religion, parental behavior, and socioeconomic variables. Our empirical evidence suggests that people with stronger...

This paper incorporates the behavioral labor economic perspective into the traditional Harris-Todaro rural-urban migration model. We study cases in which one's utility is not only determined by his own wage, but also by wages of others. In our theoretical models, rural-urban migration is driven...